42022220000042 has 4 divisors (see below), whose sum is σ = 63033330000066. Its totient is φ = 21011110000020.

The previous prime is 42022219999943. The next prime is 42022220000053. The reversal of 42022220000042 is 24000002222024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32035362280441 + 9986857719601 = 5659979^2 + 3160199^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42022219999969 and 42022220000023.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505555000009 + ... + 10505555000012.

Almost surely, 2^{42022220000042} is an apocalyptic number.

42022220000042 is a deficient number, since it is larger than the sum of its proper divisors (21011110000024).

42022220000042 is a wasteful number, since it uses less digits than its factorization.

42022220000042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21011110000023.

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 42022220000042 its reverse (24000002222024), we get a palindrome (66022222222066).

The spelling of 42022220000042 in words is "forty-two trillion, twenty-two billion, two hundred twenty million, forty-two", and thus it is an aban number.